ephedrine/trötthet

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Adverse events associated with ephedrine-containing products--Texas, December 1993-September 1995.

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During December 1993-September 1995, the Bureau of Food and Drug Safety, Texas Department of Health (TDH), received approximately 500 reports of adverse events in persons who consumed dietary supplement products containing ephedrine and associated alkaloids (pseudoephedrine, norephedrine, and

Anti-hypotensive treatment and endothelin blockade synergistically antagonize exercise fatigue in rats under simulated high altitude.

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Rapid ascent to high altitude causes illness and fatigue, and there is a demand for effective acute treatments to alleviate such effects. We hypothesized that increased oxygen delivery to the tissue using a combination of a hypertensive agent and an endothelin receptor A antagonist drugs would limit

Ephedrine induced thioredoxin-1 expression through β-adrenergic receptor/cyclic AMP/protein kinase A/dopamine- and cyclic AMP-regulated phosphoprotein signaling pathway.

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Ephedrine (Eph) is one of alkaloids that has been isolated from the ancient herb ephedra (ma huang) and is used as the treatment of asthma, hypotension and fatigue. However, its molecular mechanism remains unknown. Thioredoxin-1 (Trx-1) is a redox regulating protein, which has various biological

Efficacy and safety of herbal stimulants and sedatives in sleep disorders.

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World-wide use of herbal medicines is increasing, following regulatory and manufacturing developments. Herbs are attractive alternative medications to many patients with sleep disorders, who may be averse to using conventional drugs. We review here the most common herbal stimulants and sedatives.

Caffeine and other sympathomimetic stimulants: modes of action and effects on sports performance.

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Stimulants, illegal and legal, continue to be used in competitive sport. The evidence for the ergogenic properties of the most potent stimulants, amphetamines, cocaine and ephedrine, is mostly insubstantial. Low doses of amphetamines may aid performance where effects of fatigue adversely affect

[Exploration of Mahuang Fuzi Xixin Decoction formula syndromes based on severe cases of critical care and its application for nosocomial infection in critical care medicine including hyperpyrexia after tracheotomy and severe pain accompanied by acute myocardial infarction and diabetic peripheral neuropathy].

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Mahuang Fuzi Xixin Decoction recorded in Treatise on Febrile Diseases by Zhang Zhongjing in the Han Dynasty have been widely used in treating Yang deficiency and exogenous wind-cold syndrome by traditional Chinese medicine physicians for thousands of years. The indications of Mahuang Fuzi Xixin

Drugs and sport. Research findings and limitations.

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Many types of drugs are used by athletes to improve performance. This paper reviews the literature on 3 categories of drugs: those that enhance performance as stimulants (amphetamines, ephedrine, and cocaine), those that are used to reduce tremor and heart rate (beta-blockers) and those involved in

Midodrine. A review of its pharmacological properties and therapeutic use in orthostatic hypotension and secondary hypotensive disorders.

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Midodrine, a peripheral alpha-adrenergic agonist, finds use in the clinical management of patients with orthostatic hypotension or hypotension secondary to other clinical conditions or drug therapies. Midodrine is almost completely absorbed after oral administration and undergoes enzymatic

Pharmacology of stimulants prohibited by the World Anti-Doping Agency (WADA).

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This review examines the pharmacology of stimulants prohibited by the World Anti-Doping Agency (WADA). Stimulants that increase alertness/reduce fatigue or activate the cardiovascular system can include drugs like ephedrine available in many over-the-counter medicines. Others such as amphetamines,

Caffeine and exercise: metabolism, endurance and performance.

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Caffeine is a common substance in the diets of most athletes and it is now appearing in many new products, including energy drinks, sport gels, alcoholic beverages and diet aids. It can be a powerful ergogenic aid at levels that are considerably lower than the acceptable limit of the International

Pharmacologic treatment of downstream of tyrosine kinase 7 congenital myasthenic syndrome.

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OBJECTIVE Congenital myasthenic syndromes (CMSs) are increasingly recognized as causes of muscle fatigue and weakness. However, treatment of individual syndromes has been described only in small case series. OBJECTIVE To analyze the information published thus far concerning the effect of

The effect of ephedra and caffeine on maximal strength and power in resistance-trained athletes.

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Caffeine and ephedrine-related alkaloids recently have been removed from International Olympic Committee banned substances lists, whereas ephedrine itself is now permissible at urinary concentrations less than 10 mug.mL. The changes to the list may contribute to an increased use of caffeine and

Ephedra and its application to sport performance: another concern for the athletic trainer?

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OBJECTIVE The ma huang herb, otherwise known as ephedra, has gained widespread popularity as an ergogenic supplement. With the sympathomimetic alkaloid ephedrine as its primary active ingredient, ma huang is marketed to reduce fatigue; increase strength, power, and speed; decrease reaction time; and

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